/*
 * Copyright 2010 Chad Retz
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package org.jdocng.cmd.check;

import org.jdocng.shared.JavadocNgRuntimeException;
import org.junit.Assert;

import com.sun.javadoc.Tag;

/**
 * Asserts whether two {@link Tag}s are equal
 *
 * @author Chad Retz
 */
public class TagAsserter<T extends Tag> extends EqualityAsserter<T> {

    private static final TagAsserter<Tag> instance = new TagAsserter<Tag>();
    
    public static TagAsserter<Tag> getInstance() {
        return instance;
    }
    
    protected TagAsserter() {
    }
    
    @Override
    public void assertEqual(T expected, T actual) {
        //simple
        Assert.assertEquals("kind different on " + actual,
                expected.kind(), actual.kind());
        Assert.assertEquals("name different on " + actual,
                expected.name(), actual.name());
        Assert.assertEquals("text different on " + actual,
                expected.text(), actual.text());
        Assert.assertEquals("string different on " + actual,
                expected.toString(), actual.toString());
        //deeper...
        //not checking sub things exception count
        Assert.assertEquals("firstSentenceTags count different on " + actual,
                expected.firstSentenceTags().length, 
                actual.firstSentenceTags().length);
        Assert.assertEquals("inlineTags count different on " + actual,
                expected.inlineTags().length, 
                actual.inlineTags().length);
        try {
            SourcePositionAsserter.getInstance().assertEqual(
                    expected.position(), actual.position());
        } catch (AssertionError e) {
            throw new JavadocNgRuntimeException(
                    "Something different on " + actual, e);
        }
    }

}
